Name: ECU adapter
Creator: mikedoubleg
License: https://creativecommons.org/licenses/by-sa/4.0/

Not confident with automotive wiring? Have a professional harness builder or tuner do it, or check your work before first power-up. A wiring mistake can damage the ECU, the engine or the car, or start a fire.

Components

Ref	Kind	Exclude from BOM
ME221-C1	connector	included
OEM-A	connector	included
OEM-B	connector	included
OEM-D	connector	included
SP-0V	splice	included
SP-14V	splice	included
SP-GND	splice	included

Create part

KindManufacturerPart numberDescriptionUnit price

Cut list

Lengths need a layout (0 of 25 routed).

Wire	From / To	Gauge	Signal
W1	OEM-D-12 / SP-14V-1	0.85	EFI main relay power (+B)
W2	OEM-D-13 / SP-14V-1	0.85	EFI main relay power (second feed) (+B1)
W3	SP-14V-1 / ME221-C1-15	0.85	IGN +12V
W4	SP-14V-1 / ME221-C1-64	0.85	VBAT
W5	OEM-A-26 / SP-GND-1	0.85	Power ground (E01/E02)
W6	SP-GND-1 / ME221-C1-10	0.85	GROUND CHASSIS
W7	SP-GND-1 / ME221-C1-61	0.85	GROUND
W8	SP-GND-1 / ME221-C1-89	0.85	GROUND
W9	SP-GND-1 / ME221-C1-90	0.85	GROUND
W10	OEM-B-9 / SP-0V-1	0.5	Sensor ground (E1)
W11	SP-0V-1 / ME221-C1-52	0.5	SENSORS GROUND
W12	SP-0V-1 / ME221-C1-84	0.5	Sensor Ground
W13	OEM-D-5 / ME221-C1-53	0.5	Knock sensor 1 (KNK1)
W14	OEM-A-12 / ME221-C1-63	0.5	Injectors 1 & 4 (No.10)
W15	OEM-A-11 / ME221-C1-4	0.5	Injectors 2 & 6 (No.20)
W16	OEM-A-25 / ME221-C1-33	0.5	Injectors 3 & 5 (No.30)
W17	OEM-D-4 / ME221-C1-37	0.5	EFI main relay control (M-REL)
W18	OEM-B-11 / ME221-C1-26	0.5	Throttle position sensor (VTA)
W19	OEM-B-4 / ME221-C1-86	0.5	Coolant temp (THW)
W20	OEM-D-2 / ME221-C1-6	0.5	Karman-vortex AFM signal (KS)
W21	OEM-B-6 / ME221-C1-56	0.5	Primary O2 sensor (OX1)
W22	OEM-D-3 / ME221-C1-57	0.5	Intake air temp (THA)
W23	OEM-D-9 / ME221-C1-7	0.5	Vehicle speed sensor (SPD)
W24	OEM-D-10 / ME221-C1-17	0.5	A/C compressor request (A/C)
W25	OEM-D-11 / ME221-C1-18	0.5	Starter signal (STA)

Bill of materials

No parts in this harness.